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Visual or vision impairment ( VI or VIP) is the partial or total inability of visual perception. In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment – visual impairment may cause the individual difficulties with normal daily tasks including reading and walking. [6]
Description ( notes ) AC. Anterior chamber. fluid-filled space between the iris and the endothelium. AC 4/4. Grade 4 anterior chamber angle. open angle between cornea and iris. AC 3/4. Grade 3 anterior chamber angle.
Convergence insufficiencyis a sensory and neuromuscular anomaly of the binocular visionsystem, characterized by a reduced ability of the eyesto turn towards each other, or sustain convergence. Symptoms. [edit] The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They ...
Vision rehabilitation (often called vision rehab) is a term for a medical rehabilitation to improve vision or low vision. In other words, it is the process of restoring functional ability and improving quality of life and independence in an individual who has lost visual function through illness or injury. [1] [2] Most visual rehabilitation ...
Here’s what science has to say about the psychological benefits of ditching structure and focus in lieu of laziness — at least once in a while. 1. Letting your mind wander boosts creativity. A ...
Cortical visual impairment. Cortical visual impairment (CVI) is a form of visual impairment that is caused by a brain problem rather than an eye problem. (The latter is sometimes termed "ocular visual impairment" when discussed in contrast to cortical visual impairment.) Some people have both CVI and a form of ocular visual impairment.
Computer vision syndrome ( CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.
A concussion is a mild form of traumatic brain injury, or TBI. It occurs when the skull and brain are rapidly jolted back and forth. This is usually the result of a bump, bang, or blow to the head ...